Description Of Business, Recent Developments and Summary Of Significant Accounting Policies - Basis of Presentation (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Huntsman \| Corporate allocations
RELATED PARTY TRANSACTIONS
Selling, general and administrative expenses	$ 0	$ 0	$ 62

Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration